Title: Critical fluctuations for quantum mean-field models
Authors: Fannes, Mark ×
Kossakowski, A
Verbeure, André #
Issue Date: Nov-1991
Publisher: Kluwer Academic Publishers
Series Title: Journal of statistical physics vol:65 issue:3-4 pages:801-811
Abstract: We propose a Ginzburg-Landau-type approximation for the local Gibbs states for quantum mean-field models that leads to the exact thermodynamics. Using this approach, we compute the spin fluctuations for some spin-1/2 models. At the critical temperature we find explicitly the distribution function showing abnormal fluctuations.
ISSN: 0022-4715
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

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